EP 0501505 A3 19941012 - Method for measuring the flow of fluids.
Title (en)
Method for measuring the flow of fluids.
Title (de)
Verfahren zum Messen der Flüssigkeitsstr¦mung.
Title (fr)
Procédé pour mesurer l'écoulement des fluides.
Publication
Application
Priority
- JP 3623591 A 19910301
- JP 19547291 A 19910805
- JP 21732791 A 19910828
- JP 21733591 A 19910828
Abstract (en)
[origin: EP0501505A2] The disclosed method of measuring the flow of a fluid with a porous particulate ceramic tracer and an optical instrument is characterized in that spherical particles having diameters in the range of 0.5 to 150 mu m are used as the tracer. Inasmuch as the tracer particles for flow measurement are spherical, the sectional area of scattered light to be detected by an optical sensor means is constant regardless of the orientation of particles. Furthermore, spherical particles have no surface irregularities that might cause concatenation so that individual particles are not agglomerated in tracking a fluid flow, thus contributing to improved measurement accuracy.
IPC 1-7
IPC 8 full level
G01F 1/66 (2006.01); G01F 1/704 (2006.01); G01F 1/708 (2006.01); G01F 1/7086 (2022.01); G01F 3/00 (2006.01); G01P 3/36 (2006.01); G01P 5/00 (2006.01); G01P 5/20 (2006.01); G01P 5/26 (2006.01)
CPC (source: EP KR US)
G01F 1/661 (2013.01 - EP US); G01F 1/704 (2013.01 - EP US); G01F 1/7086 (2013.01 - EP KR US); G01F 3/00 (2013.01 - KR); G01P 5/001 (2013.01 - EP US); G01P 5/005 (2013.01 - EP US); G01P 5/20 (2013.01 - EP US); G01P 5/26 (2013.01 - EP US)
Citation (search report)
- [YA] DE 2722151 A1 19781123 - MAX PLANCK GESELLSCHAFT
- [YA] US 4805811 A 19890221 - WETTERLIN KJELL I L [SE]
- [Y] J. MISHIN ET AL: "Two-colour pyrometer for the statistical measurement of the surface temperature of particles under thermal plasma conditions", JOURNAL OF PHYSICS E: SCIENTIFIC INSTRUMENTS, vol. 20, no. 6, June 1987 (1987-06-01), UK, pages 620 - 625, XP020018537, DOI: doi:10.1088/0022-3735/20/6/008
- [A] M. MURAKAMI ET AL: "Application of flow visualization and laser Doppler velocimetry to cryogenic fluids", PROCEEDINGS OF THE ELEVENTH INTERNATIONAL CRYOGENIC ENGINEERING CONFERENCE,ICEC, 22 April 1986 (1986-04-22), BERLIN,DE, pages 582 - 586
- [XY] M.K.MAZUMDER ET AL: "Flow Tracing Fidelity of Scattering Aerosol in Laser Doppler Velocimetry", APPLIED OPTICS, vol. 14, no. 4, April 1975 (1975-04-01), USA, pages 894 - 901, XP001420755
- [A] E.C. BAROTH ET AL: "Investigation of Supersonic Separated Flow in a Compression Corner by Laser Doppler Anemometry", EXPERIMENTS IN FLUIDS, vol. 1, no. 4, 1983, WüRZBURG,GERMANY, pages 195 - 203
Designated contracting state (EPC)
BE DE DK ES FR GB IT NL SE
DOCDB simple family (publication)
EP 0501505 A2 19920902; EP 0501505 A3 19941012; EP 0501505 B1 20000719; CA 2061910 A1 19920902; CA 2061910 C 19990316; DE 69231262 D1 20000824; KR 920018455 A 19921022; KR 960015071 B1 19961024; NO 920755 D0 19920226; NO 920755 L 19920902; US 2002189366 A1 20021219; US 2005219507 A1 20051006; US 6118519 A 20000912; US 6414748 B1 20020702; US 6903812 B2 20050607
DOCDB simple family (application)
EP 92103447 A 19920228; CA 2061910 A 19920226; DE 69231262 T 19920228; KR 920003445 A 19920302; NO 920755 A 19920226; US 13906705 A 20050526; US 15183902 A 20020520; US 56886600 A 20000509; US 70890696 A 19960905